Maintenance of control CSGO¾º²Â
Since the control CSGO¾º²Â is a field instrument and directly contacts with various process media, regular maintenance and regular inspection must be carried out for the control CSGO¾º²Â, especially for special process medium and improper operation conditions. The following key maintenance and daily inspection are included in the maintenance.
1) Inner wall of CSGO¾º²Â body
For the control CSGO¾º²Â used in high pressure difference and corrosive medium, the inner wall of the CSGO¾º²Â body is often impacted and corroded by the medium, so the pressure resistance and corrosion resistance must be mainly checked.
two £©Valve seat
When the regulating CSGO¾º²Â is working, the inner surface of the thread used to fix the CSGO¾º²Â seat is easy to be corroded due to the medium penetration, which makes the CSGO¾º²Â seat loose. For the CSGO¾º²Â working under high pressure difference, check whether the sealing surface of the CSGO¾º²Â seat is damaged.
The CSGO¾º²Â core is the movable part of the regulating CSGO¾º²Â when it works. It is most seriously eroded and corroded by the medium, especially in the case of high pressure difference. The CSGO¾º²Â core should be replaced when it is seriously damaged. In addition, attention should be paid to whether the CSGO¾º²Â stem has similar phenomenon or the connection with the CSGO¾º²Â core is loose.
four £©Diaphragm ¡°O¡± Ring and other gaskets
Check the diaphragm in the actuator ¡°O¡± Check whether the sealing ring and other gaskets are aged and cracked.
If polytetrafluoroethylene is used, attention should be paid to the aging and damage of the mating surface, and it should be replaced if necessary. If asbestos rope is used as filler, lubricating oil should be added frequently.